Question 29 ONC06 - Master LT 100 GRT

The Correct Answer is A. **Explanation for A (2):** The question specifies a situation governed by the U.S. Inland Rules of Navigation (33 CFR Subchapter E). Rule 30(a)(i) of the Inland Rules addresses anchor lights for vessels 50 meters or more in length: > "A vessel of 50 meters or more in length shall exhibit forward, where it can best be seen, an all-round white light and shall also exhibit **at or near the stern and at a lower level than the forward light**, an all-round white light." Since the barge is more than 50 meters long and anchored in Inland Waters, it is required to show two all-round white anchor lights. The fact that it is in a "Secretary approved 'special anchorage area'" does not change the requirement for a vessel of this length, although it is relevant for smaller vessels (see explanation for D). **Explanation of Incorrect Options:** * **B) 1:** A single all-round white anchor light is only required for vessels less than 50 meters in length (Rule 30(a)(ii)). The barge in the question is specified as being *more* than 50 meters long. * **C) 3:** There is no standard requirement under the U.S. Inland Rules for an anchored vessel of any size to display three white anchor lights. * **D) None:** While vessels less than 20 meters in length, when anchored in a "Secretary approved 'special anchorage area'," are *not* required to exhibit anchor lights (Rule 30(g) and 33 CFR 169.207), this exception does not apply to a barge exceeding 50 meters in length. Therefore, the vessel must display the required lights.